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AT24C21 Datasheet 2-wire Serial Eeprom

Manufacturer: Atmel (now Microchip Technology)

General Description

The AT24C21 provides 1024 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 128 words of 8 bits each.

The device is optimized for use in applications requiring data storage and serial transmission of configuration and control information.

The AT24C21

Key Features

  • 2-wire Serial Interface.
  • Schmitt Trigger, Filtered Inputs For Noise Suppression.
  • DDC1™/ DDC2™ Interface Compliant for Monitor Identification.
  • Low-voltage Operation.
  • 2.5 (VCC = 2.5V to 5.5V).
  • Internally Organized 128 x 8.
  • 100 kHz (2.5V) Compatibility.
  • 8-byte Page Write Mode.
  • Write Protection Available.
  • Self-timed Write Cycle (10 ms max).
  • High Reliability.
  • Endurance: 1 Million Write Cycles.

More Datasheets from Atmel (now Microchip Technology)

Part Number Description
AT24C256 2-Wire Serial EEPROMs
AT24C256B Two-wire Serial EEPROM
AT24C01 2-Wire Serial EEPROM
AT24C01A 2-Wire Automotive Serial EEPROM
AT24C01B 2-Wire Automotive Temperature Serial EEPROM
AT24C01C EEPROM
AT24C02 2-Wire Automotive Serial EEPROM
AT24C02A 2-Wire Serial EEPROM
AT24C02B 2-Wire Automotive Temperature Serial EEPROM
AT24C04 2-Wire Automotive Serial EEPROM

AT24C21 Distributor